Please use this identifier to cite or link to this item: https://doi.org/10.1080/10934529.2010.520598
Title: Removal of a potent cyanobacterial hepatotoxin by peat
Authors: Sathishkumar, O. 
Pavagadhi, S.
Mahadevan, A. 
Balasubramanian, R. 
Burger, D.F.
Keywords: biosorption
desorption
microcystin-RR
Peat
pH effect
Issue Date: Dec-2010
Citation: Sathishkumar, O., Pavagadhi, S., Mahadevan, A., Balasubramanian, R., Burger, D.F. (2010-12). Removal of a potent cyanobacterial hepatotoxin by peat. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering 45 (14) : 1877-1884. ScholarBank@NUS Repository. https://doi.org/10.1080/10934529.2010.520598
Abstract: Microcystins (cyclic heptapeptides), produced by a number of freshwater cyanobacteria, are of health concern in potable water supplies. In this article, the adsorptive removal of microcystin-RR (MCRR) from the aqueous solution by a low-cost adsorbent, peat, was investigated. The BET surface area of peat was found to be 12.134 m2/g. The adsorption process was pH dependent, with maximum adsorption occurring at pH 3. Kinetic studies revealed that the adsorption of MCRR onto peat was a rapid process. The adsorption capacity (Qmax) as revealed by the Langmuir model was found to be 286 μg/g at pH 3. Among various desorption media studied, strong alkali solutions (2NNaOH) showed the highest desorption (97%). Thus, peat has potential to be used as an adsorbent for the removal of the cyanotoxin, MCRR, from drinking water. Copyright © Taylor & Francis Group, LLC.
Source Title: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/84661
ISSN: 10934529
DOI: 10.1080/10934529.2010.520598
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